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CONTENTS WGU C EXAMS CORRECTLY SOLVED MARKED AND GRADED A WGU C170 PRACTICE TEST WGU C170 STUDY GUIDE WGU C170 NOTES
[Show more]CONTENTS WGU C EXAMS CORRECTLY SOLVED MARKED AND GRADED A WGU C170 PRACTICE TEST WGU C170 STUDY GUIDE WGU C170 NOTES
[Show more]What is a table? - correct answer A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. 
 
What are the characteristics of a relational table? - correct answer The characteristics of a relational table are that a table is perce...
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Add to cartWhat is a table? - correct answer A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. 
 
What are the characteristics of a relational table? - correct answer The characteristics of a relational table are that a table is perce...
A salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? 
 
A One-to-one 
B One-to-many 
C One-to-one binary 
D Many-to-many 
D 
Which kind of relationship is displayed in this entity-relations...
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Add to cartA salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? 
 
A One-to-one 
B One-to-many 
C One-to-one binary 
D Many-to-many 
D 
Which kind of relationship is displayed in this entity-relations...
Domain 
In data modeling, the construct used to organize and describe an attribute's set of possible values. 
Primary key (PK) 
An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. 
Key 
On...
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Add to cartDomain 
In data modeling, the construct used to organize and describe an attribute's set of possible values. 
Primary key (PK) 
An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. 
Key 
On...
domain - correct answer In data modeling, the construct used to organize and describe an attribute's set of possible values 
 
superkey - correct answer An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. 
 
candidate key - correct ans...
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Add to cartdomain - correct answer In data modeling, the construct used to organize and describe an attribute's set of possible values 
 
superkey - correct answer An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. 
 
candidate key - correct ans...
domain - correct answer In data modeling, the construct used to organize and describe an attribute's set of possible values 
 
superkey - correct answer An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. 
 
candidate key - correct ans...
Preview 1 out of 3 pages
Add to cartdomain - correct answer In data modeling, the construct used to organize and describe an attribute's set of possible values 
 
superkey - correct answer An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. 
 
candidate key - correct ans...
Create Database Syntax - correct answer CREATE DATABASE db_name; 
 
Simple SFW query syntax - correct answer SELECT * FROM db_name WHERE column_name operator value; 
 
Cardinality: Inside or outside? - correct answer Outside 
 
Modality: Inside or outside? - correct answer Inside 
 
What commands ar...
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Add to cartCreate Database Syntax - correct answer CREATE DATABASE db_name; 
 
Simple SFW query syntax - correct answer SELECT * FROM db_name WHERE column_name operator value; 
 
Cardinality: Inside or outside? - correct answer Outside 
 
Modality: Inside or outside? - correct answer Inside 
 
What commands ar...
Create Database Syntax - correct answer CREATE DATABASE db_name; 
 
Simple SFW query syntax - correct answer SELECT * FROM db_name WHERE column_name operator value; 
 
Cardinality: Inside or outside? - correct answer Outside 
 
Modality: Inside or outside? - correct answer Inside 
 
What commands ar...
Preview 1 out of 2 pages
Add to cartCreate Database Syntax - correct answer CREATE DATABASE db_name; 
 
Simple SFW query syntax - correct answer SELECT * FROM db_name WHERE column_name operator value; 
 
Cardinality: Inside or outside? - correct answer Outside 
 
Modality: Inside or outside? - correct answer Inside 
 
What commands ar...
Add New Row - correct answer INSERT INTO table_name (column1, column2, ...) 
VALUES (value1, value2, value3, ...); 
 
Update Row - correct answer UPDATE table_name 
SET column1 = value1, column2 = value2, ... 
WHERE condition; 
 
Delete Row - correct answer DELETE FROM table_name 
WHERE condition; ...
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Add to cartAdd New Row - correct answer INSERT INTO table_name (column1, column2, ...) 
VALUES (value1, value2, value3, ...); 
 
Update Row - correct answer UPDATE table_name 
SET column1 = value1, column2 = value2, ... 
WHERE condition; 
 
Delete Row - correct answer DELETE FROM table_name 
WHERE condition; ...
A salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? - correct answer Many-to-many 
 
Refer to Diagram #2 
 
Which kind of relationship is displayed in this entity-relationship diagram? - c...
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Add to cartA salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? - correct answer Many-to-many 
 
Refer to Diagram #2 
 
Which kind of relationship is displayed in this entity-relationship diagram? - c...
Access plan - correct answer A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. 
 
Alias - correct answer An alternative name for a column or table in a...
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Add to cartAccess plan - correct answer A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. 
 
Alias - correct answer An alternative name for a column or table in a...
A salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? 
 
One-to-one 
One-to-many 
Many-to-many 
One-to-one binary - correct answer Many-to-many 
 
Which two examples are attributes? 
 
...
Preview 3 out of 22 pages
Add to cartA salesperson is authorized to sell many products and a product can be sold by many salespersons. 
 
Which kind of binary relationship does this scenario describe? 
 
One-to-one 
One-to-many 
Many-to-many 
One-to-one binary - correct answer Many-to-many 
 
Which two examples are attributes? 
 
...
If integer values are relatively small, what should be used instead of INT? - correct answer SMALLINT 
 
What is the SQL command that allows a user to list the contents of a table? - correct answer SELECT 
 
What is the process the DBMS uses to verify that only registered users access the database? ...
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Add to cartIf integer values are relatively small, what should be used instead of INT? - correct answer SMALLINT 
 
What is the SQL command that allows a user to list the contents of a table? - correct answer SELECT 
 
What is the process the DBMS uses to verify that only registered users access the database? ...
A database model - correct answer is a conceptual framework for database software 
 
The relational model - correct answer is a database model based on mathematical principles, with three parts: 
1. A data structure that prescribes how data is organized. 
2. Operations that manipulate data structure...
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Add to cartA database model - correct answer is a conceptual framework for database software 
 
The relational model - correct answer is a database model based on mathematical principles, with three parts: 
1. A data structure that prescribes how data is organized. 
2. Operations that manipulate data structure...
The order of the rows and columns is important to the DBMS. 
 
True or False - correct answer False 
 
PRODUCT yields all possible pairs of rows from two tables, also known as the _______ product. - correct answer Cartesian 
 
According to Codd's ______ rule of relation database, "Application pro...
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Add to cartThe order of the rows and columns is important to the DBMS. 
 
True or False - correct answer False 
 
PRODUCT yields all possible pairs of rows from two tables, also known as the _______ product. - correct answer Cartesian 
 
According to Codd's ______ rule of relation database, "Application pro...
AREA - correct answer In DB2, a named section of permanent storage space that is reserved to store the database. 
 
associative entity - correct answer See composite entity. 
 
bridge entity - correct answer See composite entity. 
 
candidate key - correct answer A minimal superkey; that is, a key t...
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Add to cartAREA - correct answer In DB2, a named section of permanent storage space that is reserved to store the database. 
 
associative entity - correct answer See composite entity. 
 
bridge entity - correct answer See composite entity. 
 
candidate key - correct answer A minimal superkey; that is, a key t...
CREATE TABLE syntax 
DDL - correct answer CREATE TABLE tableName ( 
colName dataType constraint 
INDEX indexName (colName) 
PRIMARY KEY (colName, colName) 
or 
colName dataType PRIMARY KEY 
FOREIGN KEY (colName, colName) 
REFERENCES tableName (colName) 
); 
 
CREATE INDEX syntax 
DDL - correct answ...
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Add to cartCREATE TABLE syntax 
DDL - correct answer CREATE TABLE tableName ( 
colName dataType constraint 
INDEX indexName (colName) 
PRIMARY KEY (colName, colName) 
or 
colName dataType PRIMARY KEY 
FOREIGN KEY (colName, colName) 
REFERENCES tableName (colName) 
); 
 
CREATE INDEX syntax 
DDL - correct answ...
1.1.1 - Conceptual Schema - ER Model 
 
Tables: Customer, DonutOrder, Donut - correct answer Customer: 
PK - CustomerID 
Rest are customer related fields 
 
DonutOrder: 
FK - CustomerID, 
FK - DonutID 
Qty, SpecialNotes 
 
Donut: 
PK - DonutID 
Rest are donut fields 
 
Relationships: 
Customer - 1:n...
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Add to cart1.1.1 - Conceptual Schema - ER Model 
 
Tables: Customer, DonutOrder, Donut - correct answer Customer: 
PK - CustomerID 
Rest are customer related fields 
 
DonutOrder: 
FK - CustomerID, 
FK - DonutID 
Qty, SpecialNotes 
 
Donut: 
PK - DonutID 
Rest are donut fields 
 
Relationships: 
Customer - 1:n...
A salesperson is authorized to sell many products and a product can be sold by many salespersons. 
Which kind of binary relationship does this scenario describe? - correct answer Many-to-many 
 
Which two examples are attributes? - correct answer An employee number 
A meeting code 
 
Which delete ru...
Preview 4 out of 53 pages
Add to cartA salesperson is authorized to sell many products and a product can be sold by many salespersons. 
Which kind of binary relationship does this scenario describe? - correct answer Many-to-many 
 
Which two examples are attributes? - correct answer An employee number 
A meeting code 
 
Which delete ru...
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